On time-dependent radiative transfer

Details On time-dependent radiative transfer On time-dependent radiative transfer

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jqsrt..37..151s&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer (ISSN 0022-4073), vol. 37, Feb. 1987, p. 151-156. Research supported

Computer Science

10

Integral Equations, Radiative Transfer, Time Dependence, Atomic Collisions, Collision Parameters, Frequency Distribution, Heuristic Methods

Scientific paper

An integral equation is developed for application to time-dependent laboratory experiments in which partial redistribution effects are important. The equation of transport with the Heasly-Kneer (1976) emission coefficient and the equation of statistical equilibrium lead to a time-dependent redistribution function containing an absorption - reemission term which decays exponentially in time and a scattering term which is instantaneous. This integral equation does not agree with an equation written by Payne et al. (1974) that has been used to compare theory with experiments. The difference between the Payne equation and the equation developed here needs to be examined in detail, since it might under some circumstances be on the same order as the difference between partial and complete redistribution.

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